CRUD通常指数据库的增删改查操作,本文详细介绍了如何使用GORM实现创建.查询.更新和删除操作. CRUD CRUD通常指数据库的增删改查操作,本文详细介绍了如何使用GORM实现创建.查询.更新和删除操作. 创建 创建记录 首先定义模型: type User struct { ID int64 Name string Age int64 } 使用使用NewRecord()查询主键是否存在,主键为空使用Create()创建记录: user := User{Name: "q1mi", A
Destroying The Graph Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 8198 Accepted: 2635 Special Judge Description Alice and Bob play the following game. First, Alice draws some directed graph with N vertices and M arcs. After that B